Google

Source Code for HelloWorld Example

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;



public class HelloWorld extends HttpServlet {



    public void doGet(HttpServletRequest request, HttpServletResponse response)

    throws IOException, ServletException

    {

        response.setContentType("text/html");

        PrintWriter out = response.getWriter();

        out.println("<html>");

        out.println("<body>");

        out.println("<head>");

        out.println("<title>Hello World!</title>");

        out.println("</head>");

        out.println("<body>");

        out.println("<h1>Hello World!</h1>");

        out.println("</body>");

        out.println("</html>");

    }

}